*{
    box-sizing: border-box;
}
body{
    margin: 0;
    font-family: 'Microsoft YaHei';
    font-size: 16px;
    color: #333;
    background-color: rgba(206, 227,255, 0.4)
 
}
a{
    text-decoration: none;
    color: #666;
}
ul,li{
    margin: 0;
    padding: 0;
    list-style: none;
}

/*顶部*/
.header{
    background-color: #296AAC;
    box-sizing: border-box;
}

/*顶部导航栏*/
.header>div:nth-child(1){
    width: 100%;
    background-color: rgba(0, 0, 0, 0.3);
}
.navTop{
    width: 1200px;
    height: 30px;
    font-size: 14px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.navTop>ul{
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.navTop>ul>li{
    margin: 0 5px;
    color: #fff;
    text-align: center;
}
.navTop>ul>li>a{
    text-decoration: none;
    color: #ddd;
}
.navTop>ul>li>a:hover{
    color: #fff;
}
.navTop>ul>li>input{
    box-sizing: border-box;
    color: #666;
    width: 120px;
    padding: 2px 6px;
    border: none;
    border-radius: 8px;
    outline: none;
    font-size: 12px;
}

/*头部logo*/
.headerTop{
    width: 1200px;
    height: 110px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.headerTop a{
    display: block;
}
.headerTop h1{
    color: #fff;
    font-size: 36px;
    font-family: 'KaiTi';
    margin: 0;
    margin-right: 250px;
}

/*头部导航栏*/
.header-nav-bar{
    width: 100%;
    height: 40px;
    background-color: #fff;
    position: relative;
}
.nav-bar{
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}
.nav-bar ul{
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.nav-bar ul li{
    width: 100%;
    height: 100%;
    line-height: 40px;
    text-align: center;
    cursor: pointer;
}
.lishover{
    color: #fff;
    background-color: #296AAC;
}
/*导航栏菜单*/
.nav-menu{
    font-size: 14px;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    position: absolute;
    top: 40px;
    display: none;
    opacity: 0;
    z-index: 99;
}
.nav-menu .menu{
    width: 1200px;
    height: 200px;
    margin: 0 auto;
    padding-top: 25px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    /*align-items: center;*/
}
.nav-menu .menu img{
    width: 30%;
    height: 140px;
}
.nav-menu .menu .motto{
    width: 25%;
}
.nav-menu .menu .motto p{
    color: #1C5290;
    font-weight: bold;
    text-align: center;
}
.nav-menu .menu .menu-info{
    width: 45%;
}
.nav-menu .menu .menu-info ul{
    font-size: 12px;
    width: 120px;
    float: left;
    text-align: center;
    line-height: 30px;
}
.nav-menu .menu .menu-info ul li a:hover{
    color: #1C5290;
}

.active{
    display: block;
}



/*横幅*/
.header-hf{
    width: 100%;
    height: 400px;
}
.header-hf .banner {
    /*  修改输出屏大小  */ 
    width: 100%; 
    height: 100%; 
    overflow: hidden; 
    position: relative; 
    margin-left: auto; 
    margin-right: auto; 
}
.header-hf .banner .img { 
    width: 99999px; 
    height: 400px;
    position: absolute; 
    left: 0px; 
    top: 0; 
}
.header-hf .banner .img li {
    height: 400px;
    float: left; 
}
/*修改图片大小*/
.header-hf .banner .img img { 
    width: 100%;
    height: 100%; 
}
/*小圆圈 */
.header-hf .banner .num { 
    position: absolute; 
    width: 100%; 
    bottom: 10px; 
    left: 0; 
    text-align: center; 
    font-size: 0px; 
    }
.header-hf .banner .num li { 
    width: 10px; 
    height: 10px; 
    background: #888; 
    border-radius: 50%; 
    display: inline-block; 
    margin: 0 3px; 
    cursor: pointer; 
}
.header-hf .banner .num li.on { 
    background: #F60; 
}
/*/ 按钮 /*/
.header-hf .banner .btn { 
    width: 30px; 
    height: 50px; 
    background: rgba(0,0,0,0.5); 
    position: absolute; 
    top: 50%; 
    margin-top: -25px; 
    cursor: pointer; 
    text-align: center; 
    line-height: 50px; 
    color: #fff; 
    font-size: 40px; 
    font-family: "宋体"; 
    display: none; 
}
.header-hf .banner:hover .btn { 
    display: block; 
}
.header-hf .banner .btn_l { 
    left: 0; 
}
.header-hf .banner .btn_r { 
    right: 0; 
}

/*主要内容*/

/*新闻*/
.main{
    width: 1200px;
    margin: 30px auto;
}
.main h2{
    margin: 0;
    font-size: 18px;
    font-weight: normal;
    line-height: 40px;
    width: 100%;
    border-bottom: 2px solid #1C5290;
}
.main #news{
    margin: 10px 0;
    width: 100%;
    font-size: 14px;
    color: #000;
    display: flex;
    justify-content: space-between;
}
.main #news .imgNews,
.main #news ul{
    width: 380px;
}
.main #news p{    
    margin: 0;
    padding: 0;
}

.main #news .imgNews img{
    width: 100%;
}
.main #news .imgNews p{
    text-align: center;
}
.main #news .imgNews p:last-of-type{
    font-size: 12px;
    color: #666;
    padding-top: 10px;
}
.main #news ul li{
    padding: 20px 35px;
    height: 80px;
    border-bottom: 1px solid #bbb;
    box-sizing: border-box;
}
.main #news ul li p{
    color: #000;
}
.main #news ul li p:hover{
    color: #ea4;
}

.main .news-footer{
    text-align: right;
}
.main .news-footer a{
    margin-right: 20px;
    color: #1C5290;
    font-size: 14px;
}
.main .news-footer a:hover{
    text-decoration: underline;
}
.main .news-footer strong{
    color: #333;
}

/*分栏 科学研究...*/
.main .fenlan{
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
}
.main .fenlan .research,
.main .fenlan .imgText{
    width: 580px;
    box-sizing: border-box;
}
.main .fenlan .research p{
    font-size: 14px;
    color: #333;
}
.main .fenlan .research p:hover{
    color: #ea4;
}
.main .fenlan .imgText .imgTop{
    width: 100%;
    height: 160px;
    background-color: #eee;
    margin: 20px 0;
    border: 1px solid #bbb;
    box-sizing: border-box;
    display: flex;
    justify-content: space-around;
    overflow: hidden;
}
.main .fenlan .imgText .imgTop a:first-of-type{
    display: block;
    width: 20%;
    text-align: center;
}
.main .fenlan .imgText .imgTop a:hover p{
    color: #1C5290;
}
.main .fenlan .imgText .imgTop a:last-of-type{
    display: block;
    width: 80%;
    position: relative;
}
.show img{
    width: 100%;
    height: 100%;
}
.show span{
    position: absolute;
    left: 0;
    bottom: -25px;
}
span.headline{
    display: inline-block;
    box-sizing: border-box;
    width: 100%;
    height: 25px;
    line-height: 25px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.4);
    color: #fff;
    font-size: 14px;
}
.main .fenlan .imgText .imgTop a .person{
    width: 60px;
    height: 60px;
    border: 2px solid #1C5290;
    border-radius: 50%;
    text-align: center;
    background-image: url(../img/person.png);
    background-size: 140px;
    background-position: -9px -60px;
}
.main .fenlan .imgText .imgTop a .reading{
    width: 60px;
    height: 60px;
    border: 2px solid #1C5290;
    border-radius: 50%;
    background-image: url(../img/reading.png);
    background-size: 60px;
    background-position: -2px -1px;
}
.main .fenlan .imgText .imgTop a div{
    margin: 25px auto 5px auto;
}

/*专题网站*/
.website{
    width: 1200px;
    height: 140px;
    margin-top: 30px;
    background-color: #eee;
    display: flex;
    justify-content: space-around;
}
.website .person{
    width: 60px;
    height: 60px;
    box-sizing: border-box;
    border: 2px solid #1C5290;
    border-radius: 50%;
    background-image: url(../img/website.png);
    background-size: 100% 100%;
    margin: 20px auto 10px auto;
}
.website a{
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 14px;
    border-top: 2px solid #1C5290;
    box-sizing: border-box;
    border-left: 1px solid #ccc;
    position: relative;
    overflow: hidden;
}
.website a:first-of-type{
    width: 50%;
    font-size: 16px;
    border: 1px solid #bbb;
    border-right: none;
}
.website a:first-of-type:hover{
    color: #1C5290;
}

/*友情链接*/
.blogroll{
    width: 1200px;
    padding: 30px 0;
    margin: 30px 0 30px 0;
    /*background-color: rgba(206, 227,255, 1);*/
    box-sizing: border-box;
}
.blogroll ul{
    width: 100%;
    display: flex;
    justify-content: space-around;
}
.blogroll ul li{
    width: 200px;
    height: 140px;
    text-align: center;
    background-color: #fff;
    border: 10px solid #fff;
    box-sizing: border-box;
    position: relative;
}
.blogroll ul:first-of-type li{
    margin-bottom: 40px;
    box-sizing: border-box;
}
.blogroll ul li img{
    width: 100%;
    height: 100%;
    -webkit-filter: grayscale(1);   /* Webkit */ 
    filter:gray;                  /* IE6-9 */ 
    filter: grayscale(1);           /* W3C */ 
    border: 1px solid #ccc;
    box-sizing: border-box;
}
.blogroll ul li:hover img{
    filter: none;
}
.blogroll ul li span{
    display: block;
    width: 100%;
    height: 28px;
    line-height: 28px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.6);
    position: absolute;
    left: 0;
    bottom: 0;
}


.footer-bar{
    width: 100%;
    background-color: #1C5290
}
.footer-info{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.footer-info section{
    width: 100%;
    height: 120px;
    margin: 20px 0;
    text-align: center;
    border-left: 1px solid #296AAC;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.footer-info section:nth-child(1){
    width: 60%;
}
.footer-info section:nth-child(1) li{
    line-height: 26px;
}
.footer-info section:nth-child(1) a{
    text-decoration: none;
    color: #fff;
}
.footer-info section:nth-child(3){
    width: 60%;
    border-right: 1px solid #296AAC;
}
.footer-bottom{
    width: 100%;
    height: 30px;
    color: #fff;
    background-color: #000;
}
.footer-bottom ul li{
    font-size: 14px;
    line-height: 30px;
}






/*清除浮动的公共类*/
.clearfix{
    /*zoom IE浏览器专有的属性，用来解决IE5、IE6的浮动问题*/
    zoom: 1;
}
.clearfix::after{
    content: '';
    display: block;
    clear: both;
    visibility: hidden;
    height: 0;
}
/*开启媒体查询*/
/*也可以在样式中直接使用min-width来设置*/
@media screen and (max-width:1200px){
    .header,
    .header-hf,
    .footer-bar
    {
        width: 1200px;
    }
}

/*回到顶部*/
.scrollTop{
    width: 50px;
    height: 50px;
    color: #fff;
    font-size: 24px;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.3);
    position: fixed;
    right: 30px;
    bottom: 50px;
    display: none;
}